Electronic cancellation of ambient noise in telephone headset
    1.
    发明授权
    Electronic cancellation of ambient noise in telephone headset 失效
    在电话耳机中电子消除环境噪声

    公开(公告)号:US5774565A

    公开(公告)日:1998-06-30

    申请号:US493017

    申请日:1996-10-28

    CPC分类号: H04M1/6016 H04M1/19

    摘要: Noise reducing circuits for electronic receiving instruments, such as telephone receivers in headsets or handsets that are used in noisy locations, provide compensation of the set's receiver unit-to-error microphone transfer function to enhance the noise reduction. Further circuits provide pre-conditioning of the incoming voice signal to make the noise cancellation more effective. The tendency of these noise cancelling circuits to oscillate is substantially lessened by added circuitry which rapidly detects onset of oscillation and momentarily reduces the noise cancellation without interrupting the incoming speech path altogether.

    摘要翻译: 用于电子接收仪器的噪声降低电路,例如在噪音位置使用的耳机或手机中的电话接收器,可以提供该组接收机单元到错误麦克风传递功能的补偿,以增强降噪。 进一步的电路提供输入语音信号的预调节,以使噪声消除更有效。 这些噪声消除电路振荡的趋势通过添加的电路而被迅速地检测到振荡开始并且暂时地降低噪声消除而不中断输入语音路径的电路基本上减轻。

    High frequency spread spectrum communication system terminal
    2.
    发明授权
    High frequency spread spectrum communication system terminal 失效
    高频扩频通信系统终端

    公开(公告)号:US4761796A

    公开(公告)日:1988-08-02

    申请号:US694549

    申请日:1985-01-24

    IPC分类号: H04B1/69 H04L27/30

    CPC分类号: H04B1/69

    摘要: The spread spectrum communication system terminal comprises a first subsystem including a first arrangement to encode a locally generally digital data with an error correcting code, a second arrangement for spectrum spreading of the encoded locally generated digital data in at least one mode of operation of the communication system terminal, a third arrangement to receive remotely generated error correcting code encoded digitla data spectrum spread in the one mode of operation and a fourth arrangement to recover the remotely generated digital data. In addition, a second subsystem includes a fifth arrangement frequency hopping the encoded locally generated digital data prior to transmission to a remote location and a sixth arrangement frequency dehopping the encoded remotely generated digital data received from the remote location. A third subsystem is also provided including a seventh arrangement to provide a predetermined signal for spectrum spreading the encoded locally generated digital data in the one mode of operation and to couple the encoded locally generated digital data to the fifth arrangement and an eighth arrangement to provide a reference frequency for the frequency hopping and frequency dehopping and to couple the frequecny dehopped encoded remotely generated digital data from the sixth arrangement to the third arrangement.

    摘要翻译: 扩展频谱通信系统终端包括第一子系统,该第一子系统包括用于以本地大体上具有纠错码的数字数据编码的第一装置,用于在通信的至少一种操作模式中编码的本地产生的数字数据的频谱扩展的第二装置 系统终端,用于接收在一种操作模式中扩展的远程生成的纠错码编码的数字数据频谱的第三种装置和用于恢复远程产生的数字数据的第四种装置。 此外,第二子系统包括在传输到远程位置之前将编码的本地生成的数字数据跳频的第五布置,以及从远程位置接收的编码的远程生成的数字数据的第六布置频率。 还提供了第三子系统,其包括第七装置,以提供用于在一种操作模式下对编码的本地生成的数字数据进行频谱扩展的预定信号,并将编码的本地生成的数字数据耦合到第五装置和第八装置, 用于跳频和频率去抖动的参考频率,以及将来自第六装置的频繁被去编码的经编码的远程生成的数字数据耦合到第三装置。

    Noise-cancelling telephone handset
    4.
    发明授权
    Noise-cancelling telephone handset 失效
    降噪电话听筒

    公开(公告)号:US5491747A

    公开(公告)日:1996-02-13

    申请号:US279389

    申请日:1994-07-25

    IPC分类号: H04M1/19 H04R1/10 H04M1/00

    CPC分类号: H04M1/19

    摘要: A radio or telephone handset configured with the usual transmitter and receiver ends and connecting handle is designed to have physical characteristics well adapted in its acoustic characteristics to complement noise cancellation circuitry. The receiver speaker is mounted in the receiver cap, and the cap is built with a domed, apertured earpiece extending from the exterior surface of said receiver cap. The dome fits into a user's outer ear, thereby to aid in positioning said handset on a user's ear. Openings radially placed on said receiver cap exterior surface and surrounding said earpiece, define an acoustic grill through which signal from said receiver speaker is passed substantially directly to said user's ear canal. Noise absorbing material is placed at strategic locations within the handset interior.

    摘要翻译: 配置有通常的发射器和接收器端部和连接手柄的无线电或电话手机被设计成具有在其声学特性中良好适应的物理特性以补充噪声消除电路。 接收器扬声器安装在接收器盖中,并且帽被构建成具有从所述接收器盖的外表面延伸的圆顶的有孔耳机。 圆顶装配到用户的外耳中,从而有助于将手机定位在用户的耳朵上。 径向放置在所述接收器盖外表面上并围绕所述听筒的开口限定了声学格栅,来自所述接收器扬声器的信号通过该格栅基本上直接地通过所述用户的耳道。 噪音吸收材料放置在手机内部的战略位置。

    Trash bag separator
    5.
    发明申请
    Trash bag separator 审中-公开
    垃圾袋分离器

    公开(公告)号:US20070059471A1

    公开(公告)日:2007-03-15

    申请号:US11165499

    申请日:2005-09-12

    申请人: Charles Sanford

    发明人: Charles Sanford

    IPC分类号: B32B33/00

    CPC分类号: B65B43/30 Y10T428/14

    摘要: The Trash Bag Separator, as the name implies is an apparatus to aid in the initial opening of plastic bags such as grocery bags and trash bags. The Trash Bag Separator resembles a plastic credit card folded in half, with adhesive edge paper on each of the inner sides, with the sticky strip on the outer edge. To use the invention, the user places the “book” over the open end of the bag and closes it. The spring nature of the binding causes the “book” to open when released. The sticky paper then separates the two halves of the bag allowing it to be open with ease. The bag can then be removed from the Trash Bag Separator, and the invention is ready to reuse on the next bag.

    摘要翻译: 顾名思义,垃圾袋分离器是一种帮助初始打开诸如杂货袋和垃圾袋的塑料袋的设备。 垃圾袋分离器类似于折叠成一半的塑料信用卡,每个内侧都具有粘合边缘纸,外边缘具有粘性条。 为了使用本发明,用户将“书”放在袋子的开口端并将其关闭。 绑定的春天性质使得“书”在释放时打开。 然后,粘性纸分离袋的两个半部分,使其容易打开。 然后可以将该袋从垃圾袋分离器中取出,并且本发明可以在下一个袋子上重新使用。

    Timer
    6.
    发明申请
    Timer 审中-公开
    计时器

    公开(公告)号:US20050128879A1

    公开(公告)日:2005-06-16

    申请号:US10737701

    申请日:2003-12-15

    IPC分类号: G04F1/00 G04F10/00

    CPC分类号: G04F1/005

    摘要: In one embodiment, a timer is disclosed having at least one switch, an alarm, a display device, and a controller. The controller starts a countdown sequence in response to activation of a switch, the countdown sequence having at least one time interval. The controller then activates an alarm at an end of the countdown sequence and at each of the at least one time interval. As well, the controller displays a number of substantially completed countdown sequences on the display device in response to activation of a switch. Other embodiments are discussed, and each can be used alone or in combination with one another.

    摘要翻译: 在一个实施例中,公开了具有至少一个开关,报警器,显示装置和控制器的计时器。 控制器响应于开关的激活而启动倒计时序列,倒计时序列具有至少一个时间间隔。 然后,控制器在倒计时序列结束时和在至少一个时间间隔的每个时间段激活警报。 同样,控制器响应于开关的激活在显示装置上显示大量基本上完成的倒计时序列。 讨论了其它实施方案,并且每个可以单独使用或彼此组合使用。

    Method and system for communicating with remote units in a communication system
    7.
    发明授权
    Method and system for communicating with remote units in a communication system 有权
    用于与通信系统中的远程单元进行通信的方法和系统

    公开(公告)号:US06442372B1

    公开(公告)日:2002-08-27

    申请号:US09464181

    申请日:1999-12-16

    IPC分类号: H04B1700

    CPC分类号: H04W24/00

    摘要: A method and system for a communication system with a communication center, a communication site, a user station and a remote unit allowing the communication center to communicate with the user station over a user channel and communicate with the remote unit over a system channel such that the communication center can monitor, operate or control the remote unit on as needed basis.

    摘要翻译: 一种用于具有通信中心,通信站点,用户站和远程单元的通信系统的方法和系统,其允许通信中心通过用户信道与用户站进行通信,并通过系统信道与远程单元通信,使得 通信中心可以根据需要监控,操作或控制远程单元。